package com.example.demo.common.config;

import com.github.benmanes.caffeine.cache.Caffeine;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.caffeine.CaffeineCacheManager;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.List;
import java.util.concurrent.TimeUnit;

@Configuration
@EnableCaching
public class CacheConfig {

    @Bean
    public Caffeine<Object, Object> caffeineConfig() {
        return Caffeine.newBuilder()
                .maximumSize(1000)
                .expireAfterWrite(5, TimeUnit.MINUTES)
//                .weakKeys() // 很坑会，基本上很快就把key清理掉了，缓存再也命中不了
                .recordStats();
    }

    @Bean
    public CacheManager cacheManager(Caffeine<Object, Object> caffeine) {
        CaffeineCacheManager cacheManager = new CaffeineCacheManager();
        cacheManager.setCaffeine(caffeine);
        cacheManager.setCacheNames(List.of(new String[]{"users"}));
        return cacheManager;
    }

}
